/*
 * Open Chinese Convert
 *
 * Copyright 2015-2021 Carbo Kuo <byvoid@byvoid.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "test_utils_utf8.h"
#include "text_dict_test_base.h"

namespace hadar {
    class TextDictTest : public TextDictTestBase {
    protected:
        TextDictTest() : fileName("dict.txt") {
        };

        const std::string fileName;
    };

    TEST_F(TextDictTest, DictTest) { TestDict(textDict); }

    TEST_F(TextDictTest, Serialization) {
        textDict->hadar::SerializableDict::SerializeToFile(fileName);
    }

    TEST_F(TextDictTest, Deserialization) {
        const TextDictPtr &deserialized =
                SerializableDict::NewFromFile<TextDict>(fileName);
        TestDict(deserialized);
    }

    TEST_F(TextDictTest, DeserializationEmptyLine) {
        FILE *fp = fopen(fileName.c_str(), "w");
        fprintf(fp, "A\tB\n\n\nC\tD E\n\n");
        fclose(fp);
        const TextDictPtr &dict = SerializableDict::NewFromFile<TextDict>(fileName);
        EXPECT_EQ(dict->GetLexicon()->Length(), 2);

        Optional<const DictEntry *> entry = dict->hadar::Dict::Match("A");
        EXPECT_TRUE(!entry.IsNull());
        EXPECT_EQ(utf8("A"), entry.Get()->Key());
    }

    TEST_F(TextDictTest, ExactMatch) {
        auto there = textDict->Match("積羽沉舟", 12);
        EXPECT_FALSE(there.IsNull());
        auto dictEntry = there.Get();
        EXPECT_EQ(1, dictEntry->NumValues());
        EXPECT_EQ(utf8("羣輕折軸"), dictEntry->GetDefault());

        auto nowhere = textDict->Match("積羽沉舟衆口鑠金", 24);
        EXPECT_TRUE(nowhere.IsNull());
    }

    TEST_F(TextDictTest, MatchPrefix) { {
            auto there = textDict->MatchPrefix("清華", 3);
            EXPECT_FALSE(there.IsNull());
            auto dictEntry = there.Get();
            EXPECT_EQ(utf8("Tsing"), dictEntry->GetDefault());
        } {
            auto there = textDict->MatchPrefix("清華", 5);
            EXPECT_FALSE(there.IsNull());
            auto dictEntry = there.Get();
            EXPECT_EQ(utf8("Tsing"), dictEntry->GetDefault());
        } {
            auto there = textDict->MatchPrefix("清華", 6);
            EXPECT_FALSE(there.IsNull());
            auto dictEntry = there.Get();
            EXPECT_EQ(utf8("Tsinghua"), dictEntry->GetDefault());
        } {
            auto there = textDict->MatchPrefix("清華", 100);
            EXPECT_FALSE(there.IsNull());
            auto dictEntry = there.Get();
            EXPECT_EQ(utf8("Tsinghua"), dictEntry->GetDefault());
        }
    }
} // namespace hadar
